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Finding the Fourth Proportional to 590,606.20, 886,038.90 and 291,230.20

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Solution

The fourth proportional to 590,606.20, 886,038.90 and 291,230.20 is: 436,909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,606.20 : 886,038.90 = 291,230.20 : x
  2. Step 2: Convert to fraction form
    590,606.20/886,038.90 = 291,230.20/x
  3. Step 3: Cross multiply
    590,606.20x = 886,038.90 × 291,230.20
  4. Step 4: Simplify right side
    590,606.20x = 258,041,286,054.78
  5. Step 5: Solve for x
    x = 258,041,286,054.78/590,606.20
  6. Step 6: Final answer
    x = 436,909.21

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.